Labor dispute at Tesoro refinery boosted margins -CEO
May 08, 2015 at 20:36 PM EDT
SAN FRANCISCO, May 8 (Reuters) - A 52-day labor strike that led to a shutdown at Tesoro Corp's refinery in Martinez, California, helped boost the company's bottom line last quarter, the company's chief executive said on Friday, prompting cries that the state's gasoline market needs to be reformed.
